Improved pendulum-paddles



. shafts C, on' which they turn.

Nrrn"v STATES PATENT IMPROVED PENDULUNI-PADDLES.

Spcciiieation forming part of Letters Patent No. 36, [65, dated Augustl2, 1862i Ta all whom it may concern:

Beit known that I, A. F. XV. NEYNABER, ofthe city and county ofPhiladelphia, in the State of Pennsylvania, have invented certain newand useful Improvements in Pendulnm A Paddlesfor'PropellingVessels; andIdohereby declarethat the following is a full, clear, and

exact description of the saine, reference being had to the accompanyingdrawings, in which- Figure l represents a side view of one pair of saidpendnlumpaddles. Fig. 2 represents a side View thereof, the position ofthe several parts having been changed, as will be more fully explainedin the following description.

The nature of my invention consists in the combination and arrangementof certain links,

levers, and Vchains with a pair of pendulum-` paddle arms working inopposite directions, so as to operate said paddlearms alternately andcausing the paddles attached to the arms to open when the arms are movedin one direction, but to close and press against the water when they aremoved in anv opposite direction, thus exerting a continuons and evenpressure against the water. y

It also consists in certain arrangements by which the action of thepaddles may be reversed without reversing the motion of .the enginewhich drives theapparatus.

y To enable others skilled in the art to make and use my invention, I`will proceedto describe its construction and operation.

Areprescnts a frame, to which the double pendulum-arms B lare hung bymeans of the The paddles a are hinged to the lower end of the pendulun1-arms, and the ends of said paddles are hinged to the plates b ofthe barS, which is pivoted at c to the cam-plate D, the latter being secured tothe shaft cl, which has its bearings in the arms B.

E represents two arms, which are pivoted to the frame A atj'. These armsare connected by means of the pitmen F and crank G With thedriving-shaft H, by the rotation of which they are vibrated. The links Iare'pivoted to the lower ends of the arms E, and their ends are hungtothe shaft g, which can freely play within the grooves a of thecani-plates D. By

turning the main shaft H in the direction of the arrow, Fig. l, the armsE-niove toward the position indicated in red lines, and theshaftg, beingat Ythe end of the slot z of the cam-plate D, forces the latter and thependulum-arms B to the position indicated in red'lines, the paddles a onsaid arms being open and passing through the water without finding anyresistance therein. Vhen the arms B have arrived at their ex tremeposition, the erank-lever G commences its return motion, causing thecam-plate D to` turn on its pivot d in the direction ofthe black arrow.This movement will raise the rods S, and, consequently, close thepaddles, as represented in B. i When the paddles pass through the waterin this position, they exert a pressure thereon by which the vessel ispropelled;

and to prevent them from yielding to the heavy pressure the ends of eachpaddle, while iu this position, lean againstthe side plates b of therods S, by which they are retained in their proper position: When thependulum-rod B has arrived at the limit of its course, its vniotion isreversed by the rotating motion of the erank,and cam-plate D,turning toits first position, opens the paddles, which then pass through the waterWithout causing any pressure thereon.

To reverse the :motion of the pendulum-bars whilethe motion of theengine or of the main shaft remains the same, I have applied thefollowing apparatus:. i

The double lever K is attached to the horizontal shaft L and theconneetingrods M are hinged to the ends of lever K and pivoted to theends of the levers N, which turn on the shafts O. To these shafts arealso secured the levers or plates P, and the chains Q, which are securedto` them, pass over the rollers m down to the ends of the levers R,which are secured on the shafts n, and which can be turned on saidshafts by operating the shaft L and the levers K MPN and chains Q. Theend of the lever R is connected with the shaft g by means of the linksT, andptherefore, by turning the lever R from the position representedin Fig. l to that in Fig. 2, the earns are turned to the respectivepositions represented in said figures, and the paddles are closed oropened. This may be done whilethe pendulum-arms are in motion, and thenthe motion of the vesselis reversed.

Thus it will be seen that where a pair of such pendulum-paddles isapplied to each side of the vessel one of the pair is constantly aetingon the Water, while the other passes through the water without anyresistance. There is sels forward, while Fig. 1 represents the positionfor moving the vessel backward.

Having thus fully described the nature of my invention7 what I claim,and desire to secure by Letters Patent, is-

1. In combination With a pair of pendulumpaddles, the arrangement of thelevers and links F E I, eamD, rod S, and paddles a, substantially in themanner and for the purposes herein described.

2. In combination with a pair of pendulumpaddles, the arrangement of theshafts, levers, and links K M N P R T, chains Q, cam D, and bars S, forthe purpose of reversing the action of the paddles, when constructed andarranged substantially in the manner and for the purposes hereindescribed.

A. F. W. NEYNABER.

' Vitnesses: CONRAD STAPF, PHrLrPr ZAsTMANN.

